| 1. | Class III reductases are distributed in archaebacteria, eubacteria, and bacteriophages.
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| 2. | This protein is well conserved amongst the Eubacteria and Archaea.
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| 3. | The Bacteria ( = prokaryotes ) are subdivided into Eubacteria and Archaebacteria.
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| 4. | Restriction enzymes are endonucleases from eubacteria and archaea that recognize a specific DNA sequence.
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| 5. | Subtilase is widespread, being found in eubacteria, archaebacteria, eukaryotes and viruses.
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| 6. | Histone-like proteins are present in many Eubacteria, Cyanobacteria, and Archaebacteria.
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| 7. | Eubacteria are much more structurally diverse than archaebacteria.
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| 8. | It is commonly found in Eubacteria, Archaebacteria, Protista, Fungi, and Plantae.
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| 9. | Probably Eubacteria is a basal paraphyletic group.
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| 10. | They are universal and are found in Eubacteria, Archaea, and Eukarya, including humans.
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